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System cancels noise using cross-correlation.

The Dual Channel Phase Noise Test System (DCNTS) is a two-channel phase and amplitude noise analyzer with a dual demodulator architecture that allows the test system to use cross-correlation to cancel its internal noise. The resulting tests are similar to comparing the output of two separate systems while displaying only the similarities and rejecting the differences.


The residual noise measurement front end incorporates the hardware to automatically measure noise on two-port devices, either at RF or microwave frequencies. Features include a 50-MHz to 1.8/18-GHz input frequency and a 2-MHz to 1.8/26.5/40/50-GHz input frequency measurement range. Offset capability is 0.01 Hz to 40 MHz, cross-correlation 1 to 100,000, [+ or -] 2-dB accuracy to 1-MHz offset and [+ or -] 3 dB to 40-MHz offset, and 3-mHz to 46-kHz instantaneous resolution. Noise Extended Technologies,

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Title Annotation:Noise Extended Technologies
Publication:EE-Evaluation Engineering
Article Type:Brief article
Geographic Code:1USA
Date:Aug 1, 2010
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